Technical data

BLADEOS 6.3 Command Reference
BMD00186-B, April 2010 Chapter 4: Configuration Commands
 353
Border Gateway Protocol Configuration
Border Gateway Protocol (BGP) is an Internet protocol that enables routers on a network to share
routing information with each other and advertise information about the segments of the IP address
space they can access within their network with routers on external networks. BGP allows you to
decide what is the “best” route for a packet to take from your network to a destination on another
network, rather than simply setting a default route from your border router(s) to your upstream
provider(s). You can configure BGP either within an autonomous system or between different
autonomous systems. When run within an autonomous system, it's called internal BGP (iBGP).
When run between different autonomous systems, it's called external BGP (eBGP). BGP is defined
in RFC 1771.
BGP commands enable you to configure the switch to receive routes and to advertise static routes,
fixed routes and virtual server IP addresses with other internal and external routers. In the current
BLADEOS implementation, the
RackSwitch G8124 does not advertise BGP routes that are learned
from one iBGP speaker to another iBGP speaker.
BGP is turned off by default.
Note – Fixed routes are subnet routes. There is one fixed route per IP interface.
Table 219 Border Gateway Protocol Commands
Command Syntax and Usage
router bgp
Enter Router BGP configuration mode.
Command mode: Global configuration
neighbor <1-16>
Configures each BGP peer. Each border router, within an autonomous system, exchanges
routing information with routers on other external networks.
Command mode: Router BGP
To view command options, see page 354.
as <0-65535>
Set Autonomous System number.
Command mode: Router BGP